Brake-shoe



(No Model.)

E. CLIFF. BRAKE SHOE.

No. 529,89 7 PatentedNov. 27, 1 894.

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llNrTE STATES PATENT ()FFICE.

EDWARD CLIFF, OF NEWARK, NEW JERSEY.

BRAKE-SHOE.

srnornrcnrron forming part of Letters Patent No. 529,897, dated November27, 1 894. Application filed July 2,1894. Serial N6. 516,285. (Nomodel.) i

To all whom it may concern.-

Be it known that I, EDW'ARD CLIFF, of N ewark, in the county of Essex,in the State of New Jersey, have invented new and useful Improvements inBrake-Shoes, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

My invention relates to brake shoes and the object is to provide astronger and more durable shoe.

To this end my invention consists essentially in a brake-shoe having acase formed integral with the fastening lug, projections extending fromthe inner side of the case toward and to the bearing surface of theshoe, perforations extending longitudinally through the projections, anda filling of metal differing from that of thecase between theprojections and extending to the bearing surface of the shoe.

With the old cast shoes the metal used is soft so that they will holdthe wheel. Therefore they rapidly wear out, but with my invention theshoe wears a great length of time and evenly as both the soft and hardmetals extend from the wearing surface into the body of theshoe; and myinvention consists in certain other combinations of parts.

Figure 1 is a side elevation of a brake-shoe embodying my invention.Fig. 2 is afront elevation ofthe same. Fig. 3 is a sectional view online 00, 00, of Figs. 1 and 2, and Fig. 4 is a transverse section online y, y, of Fig. 1.

Referring specifically to the drawings, A indicates the frame or case ofthe shoe which maybe formed externally in any suitable and well knownshape.

B is the ing or projection on the rear side of the shoe by means ofwhich it is secured or fastened to the brake head. This frame or case,A, is preferably made of malleable iron or soft steel, but any othersuitable metal may be used. The caseis recessed in its front side orwearing surface, a, so that only a border, I), and a series ofprojections or pegs, 0, within the border extend to the wearing surface,a, of the shoe These projections or pegs are preferably made solid, buteach may be made hollow or provided with a hole extending longitudinallythrough it and through the rear side of the case to allow the air tocirculate through the shoe to keep it cool. After the case is thusformed,hard metal, 0, as gray iron, or, in fact, any othersuitable'met'al, is poured in between and around the projections orpegs, o, to the same height as the pegs so as to make a uniformbearingor wearing surface. The projections or pegs, c, and the border of thecase, b, may be shaped as desired, but are shown with their sidesinclined so that the case may be cast easily. I preferably arrange thepegs, c, of opposite series in different transverse planes as shownclearly in Fig. 2 of the drawings, as this arrangement tends -tostrengthen the shoe.

' It will be apparent that the two metals used in forming the shoe maybe the same in kind, but difierent simply in degree of hardness, andfurther that, if desired, the case may be made of harder metal than thefilling, 0, although the opposite is preferred. f Having described myinvention, what I claim as new, and desire to secure by Letters Patent,is

1. A brake-shoe having a case formed integral with the fastening lug,projections ex- '7 tending from the inner side of the case toward and tothe bearing surface of the shoe, perforations extending; longitudinallythrough the projections; anda filling of metal differing fromthat of thecase between the proj ections and extending to the bearing surface ofthe shoe, asset forth.

- 2. A brake-shoe having its back formed integral with the fastening lugand a series of circular projections extending to and tapering towardthe bearing surface of the shoe, holes extending through saidprojections and said back of the shoe, and a different metal between theprojections and extending to the height of the latteras set forth.

In testimony whereof I signed my name.

i EDWARD CLIFF. [L. s.] Witnesses:

BENJ. W. TUCKER,

J. CLIFF.

have hereunto

